Method for encoding H.264 interesting region
A technology of region of interest and coding method, applied in the field of region of interest coding through bit rate control
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[0018] Below in conjunction with accompanying drawing and embodiment the utility model is further described.
[0019] Such as figure 1 As shown, for each frame of image, we calculate the size ratio of the region of interest and the background region on the image according to the specified ROI region, and allocate the region according to the ratio of the bit rate allocation between the ROI region and the background region set in the bit rate control. The number of bits and macroblocks in the area of interest in the image and the number of bits and macroblocks in the background area. At the basic unit level, the code rate control algorithm first determines whether the macroblock of the basic unit is in the region of interest, and then enters the corresponding macroblock level code rate control. The macroblocks in the region of interest adopt the code rate control control of the region of interest , the background area enters the code rate control of the background area, and t...
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